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Table 1 Study and participant characteristics

From: Reversing frailty in older adults: a scoping review

Author/year

Research design

Country of study

Age (years)

Comorbidity

Number of participants

Female (%)

Setting

Critical Appraisal

Rating

Control group

Intervention group

Abizanda, 2015 [20]

Cohort Studies

Spain

≥ 70

NR

0

69

70

Nursing/ Retirement

Moderate

Arrieta, 2019 [62]

RCT

Spain

≥ 70

NR

45

43

70.5

Nursing/ Retirement

Low

Brown, 2000 [63]

RCT

USA

≥ 75

NR

36

48

56

Nursing/ Retirement

Moderate

Cadore, 2014 [75]

Case Series

Spain

≥ 75

Dementia

NR

11

55

Nursing/ Retirement

Low

Cameron, 2013 [66]

RCT

Australia

≥ 70

NR

109

107

68

Community-Dwelling

Moderate

Cesari, 2015 [64]

RCT

USA

≥ 70

Risk of mobility disability, Sedentary lifestyle.

211

213

68.9

Community-Dwelling

Moderate

Chin A Paw, 2001 [65]

RCT

Netherlands

≥ 70

NR

37

120

70

Community-Dwelling

Moderate

Coelho-Júnior, 2021 [67]

RCT

Brazil

≥ 65

NR

13

26

64.3

Community-Dwelling

Moderate

de Souto Barreto, 2018 [24]

RCT

France

≥ 70

NR

163

185

64.7

Community-Dwelling

Low

Fiatarone, 1994 [68]

RCT

USA

≥ 70

NR

26

74

63

Nursing/ Retirement

Moderate

Hergott, 2020 [19]

Case report

USA

≥ 70

Acromegaly

NR

NR

0

Nursing/ Retirement

Moderate

Imaoka, 2016 [49]

RCT

Japan

≥ 75

NR

17

58

75.8

Nursing/ Retirement

Moderate

Kim, 2015 [23]

RCT

Japan

≥ 75

NR

33

98

100

Community-Dwelling

Moderate

Kim, 2020 [76]

Case Series

South Korea

≥ 70

NR

NR

10

100

Community-Dwelling

Low

Lammes, 2012 [50]

RCT

Sweden

≥ 75

NR

21

72

60

Community-Dwelling

Moderate

Larsen, 2020 [73]

Cohort Studies

Canada

≥ 65

NR

NR

110,297

57.6

Community-Dwelling

Low

Li ,2010 [51]

RCT

China

≥ 65

NR

31

26

47.7

Community-Dwelling

Low

Liao, 2019 [52]

RCT

China

≥ 70

NR

16

16

69.2

Community-Dwelling

Low

Liu, 2017 [69]

Quasi-Experimental

China

≥ 65

Fatigue

21

58

92

Community-Dwelling

Low

Losa-Reyna, 2019 [70]

Quasi-Experimental

Spain

≥ 75

NR

5

8

75

Community-Dwelling

Low

Nagai, 2018 [53]

RCT

Japan

≥ 65

NR

9

7

90

Community-Dwelling

Moderate

Ng, 2015 [22]

RCT

Singapore

≥ 65

NR

7

61

61.4

Community-Dwelling

Low

Ng, 2017 [54]

RCT

Singapore

≥ 65

NR

7

61

61.4

Community-Dwelling

Low

Oh, 2021 [71]

Quasi-Experimental

South Korea

≥ 65

NR

196

187

72.3

Community-Dwelling

Low

Rydwik, 2010 [55]

RCT

Sweden

≥ 75

NR

14

50

60

Community-Dwelling

Moderate

Sadjapong, 2020 [56]

RCT

Thailand

≥ 75

NR

32

32

61

Community-Dwelling

Low

Sahin, 2018 [57]

RCT

Turkey

≥ 65

NR

16

32

NR

Nursing/ Retirement

Low

Seino, 2017 [58]

RCT

Japan

≥ 65

NR

0

21

31

Community-Dwelling

Low

Takatori, 2021 [74]

Cohort Studies

Japan

≥ 75

NR

NR

942

50.3

Community-Dwelling

Low

Tarazona-Santabalbina, 2016 [59]

RCT

Spain

≥ 70

NR

49

51

54

Community-Dwelling

Low

Torres-Sánchez, 2017 [60]

RCT

Spain

≥ 65

COPD/Lung disease

29

29

27.6

Hospital-Based

Low

Ushijima, 2021 [72]

Quasi-Experimental

Japan

≥ 65

Cardiovascular disease

66 (non-frail group)

23 (frail group)

23.6

Hospital-Based

Low

Vestergaard, 2008 [61]

RCT

Denmark

≥ 75

NR

28

25

100

Community-Dwelling

Moderate

  1. NR = Not reported